good morning. i'm margaret brennan. >> and i'm anthony mason. on "cbs this morning saturday," we got him. in the words of boston's mayor as the police officers cheer in the second suspect of the marathon bombing being taken into custody. >> it was the climax of one of the largest manhunts in american history, something that paralyzed the city and transfixed the nation. >> all in all it's been a tough week, but we've seen the character of our country once more. >> and that's what we'll be looking at on our broadcast on this saturday morning, april

20th, 2013. captioning funded by cbs and good morning. welcome to the weekend. margaret brannon is with me. >> a lot to catch people up on. >> three sure is. we begin with our top story obviously, a dramatic story that comes to an end. all of boston and the nation breathes a huge sigh of relief. let's begin our coverage of this horrible monday's double bombing at the boston marathon coming to a dramatic end in watertown last near near boston with the capture of 19-year-old dzhokhar tsarnaev. the older brother tamerlan was killed thursday night in a gun battle with police. let's get the latest from don dahler in watertown. good morning, don. >> reporter: good morning,

anthony. it was a week marked with inoh verdict victims and violence that marked one of the largest manhunts in this history culminating at a house you see through the trees back there. but as you said late last night the commissioner said the bostonians can finally breathe a sigh of relief. the first indication that the search might be over the round of applause that erupted at the scene. moments later the ambulance pulled away carrying a wounded dzhokhar tsarnaev with serious wounds to his leg and neck. >> we're exhausted folks but we have a victory here tonight. >> reporter: it was the culmination of a wild 27 hours when the fbi released photos of dzhokhar and tamerlan. at the time they were only known as suspect 1 and suspect 2.

>> officer down. they're working it. they're working it. they're trying to get them there. >> reporter: by thursday night police believe they shot and killed m.i.t. police officer sean collier around 10:30 p.m. at 11:30 the tsarnaevs allegedly car jacked a man a few blocks away. they released him a half hour later at a gas station. the brothers were spotted in a stolen car in watertown about 60 minutes later. a ferocious gun battle followed. >> they have explosives some type of grenades. they're in between houses here. >> reporter: the shoot-out reach add climax at this intersection the battle recorded by terrified residents. police say tamerlan tsarnaev approached them carrying a bomb but it malfunctioned. >> loud explosion. loud explosion. shots fired. >> reporter: transit officer was

shot. so did tamerlan. but his brother slipped away. watertown residents were told to stay indoor. that order was later extended the all of boston. mass transit was shut down. by 6:00 p.m. they turned up empty and the officials canceled the lockdown. the words seemingly prophetic. only an hour later loud bangs were heard at a house outside the police perimeter. they focused their attention on a tarp covered boat parked in a yard where they believe he was hiding. at about 8:45 they had their man in custody. the manhunt was over. tsarnaev is currently being treated at beth israel hospital for his injuries. once he's fit to appear in court he'll most likely be taken to federal court where ironically the shoe bomber richard reid was

arraigned 10 years ago. anthony. >> thanks, don. well, the capture of this terror suspect naturally came as a huge relief to people of watertown who had been in lockdown for many hours and for the residents throughout the boston area. elaine kiaquijano is in boston with that part of the story. good morning, elaine. >> reporter: good morning to you, margaret and anthony. you know as word of the capture spread last night, we saw something in the boston area we really have not seen in a few days, since monday and that is the sight of people smiling and laughing. throughout the evening those smiles turned to outright jubilation. people draped themselves in american flags. they marched en masse to boston common where there was a rocket celebratory atmosphere. they were chanting usa, usa. it was a real sense of a patriot patrioticpatriot

patriotic fervor. cars passing by honking horns. college students who spent the day virtually under lockdown came out to celebrate. >> we just heard that they caught the guy, so we thought we would take a look around and say thank you to the police officers. >> i feel wonderful wonderfulnow. this is great. this is good news. >> this is like old school terrorism just to create fear and mayhem. >> reporter: now, on newbury street the downtown restaurant and retail hub, businesses began reopening last night. we saw people venturing out. one of the people we met was holely tripp, she was a runner from florida. last night she shared with us some of her reflections. >> at first we were scared at the end and then sad and angry. now we know we're going to be back next year bigger and better and we can't wait to give an honorable tribute to the

people here in boston. i hope they find there were other things and people connected to it. that's the biggest fear i think we all have. >> reporter: now one thing that should be noted is amid the loud celebrations, one thing was very evident as well and that is there is a deep sense of gratitude throughout this city throughout the area to first responders. to police fire emergency workers. there were chants last night of fbi, fbi, people very much appreciative of the role that law enforcement personnel played in capturing the suspect. margaret and anthony? >> elaine quijano in boston. thank you. the capture of dzhokhar tsarnaev conclude one of the largest manhunts in history. joining us now is cbs news senior correspondent john miller a former acesus tent of

the fbi. i know it's been a long week for you. what more do we know at this opponent about how police captured this 19-year-old? >> you know the area was in lockdown. they told everybody don't come out of your house and most people adhered to that including man who lived in that house. he came out. he checked -- he was walking in the backyard and he said there's a rip in the tarp of my boat. he climbed up saw a lot of blood inside called 911. a short time later three police officers including the such of the boston p.d. billy evans, two experience edd and fbi agents. they look inside see movement, get on the radio, call for backup, and they see an object pop up and they hear shots and they exchange fire and this was after, you know they think this guy's left the area and got

away. they got another perimeter -- actually the incident commander said everybody cease fire. let's loing it down. then the most experienced s.w.a.t. team moved in made a tactical plan about how to enter the boat and how to take him out and they threw in flash bangs and gave him a set of instructions to come out, which he followed. >> now when he was taken into custody, the authorities did not read zocor his miranda rights and why? what does that mean? >> what that means is when you question a suspect in a criminal case you have to read them there miranda rights. when there's a case of exigent circumstances, public safety is involved, you get this out of the way. i need to know this for safety. are there more explosives, is

there a plot to blow up more people? there's a public safety exception outside of miranda. we almost never see it but we saw it with the underwear bomber from detroit and we see it in this case. >> obviously they want todzhokhar alive, that was a priority. but what kind of condition had he been in? >> he had been shot in the neck and the leg. most likely with the amount of blood the homeowner saw, most likely from the night before. so 20 hours earlier after a fierce battle with the carjacking and the car chase, but throwing homemade grenades and one lard satchel bombs at police officers. so he had been bleeding for a long time. there is a picture we've shown

earlier where you see him down on the ground being treated and there's an atf s.w.a.t. member who's a medic who was using an ambu bag to actually assist him in his breathing. you can see from the photo we looked at a moment ago where he's climbing out of the boat under his own power following the command of the hrt team that he was very weak. probably had he not been discovered might not have lived. he's an intelligence windfall and there are three important questions that the president of the united states posed last night that he needs to answer. why did you do this? how did you plan this? and did you have help? the last one in this scenario being the most important. >> are we out of harm's way. >> is there another plot or are there other plotters, is he part

of a larger network or is it just he and his brother j. >> now that the suspects have been accounted for, one dead, one captured there's a lot of questions of what motivated these brothers an what could have inspired them to carry out these attacks. terrell brown is looking into that and joins us from boston. good morn, terrell. >> reporter: good morning to you. dzhokhar tsarnaev is in this hospital. he is under tight security here as investigators try to figure out who these two men are and why they did it. in a matter of seconds, a race to the finish line became a fight for survival. but the events leading up to the marathon bombings began 11 years ago when the tsarnaev family who are ethnic chechnyans moved to cambridge. dzhokhar tsarnaev seen here wearing the white cap backward

sought asylum in 2002 and became an american citizen on september 11 last year. he was premed an education funded partially by the scholarship given by the city of boston. larry larry who taughthim. they side why didn't you call and identify him. i said no way not at this kid. >> reporter: but why? >> there's nothing that would suggest any of this. politics religion nothing. >> reporter: people who knew his older brother tamerlan tsarnaev said he came as no surprise. becoming the new england golden glove heavyweight champion. his friend noticed something

about him. he became detach and seemed to delve deep sbeer his muslim faith. >> the firstee he had leather pants and kidskin boots. the second time jeans. >> reporter: he was arrested for assaulting his girlfriend in 2009. but in boston magazine hee described himself as very religious and said i don't have a single american friend because i don't understand them. >> when he came to my shop on tuesday -- >> reporter: mechanic gilberto jr. worked on the brothers' cars. he saw him on tuesday, a day ahead of the bombing. he came ahead of time to pick up a car that wasn't ready, insisted. >> you're dead you're gone he's got to pay for whatever he's done. >> reporter: when asked if tsarnaev could face the death penalty, the didn't of justice says it's too early to tell.

it has to review all of this evidence and that process is just beginning. >> terrell in boston. thank you very much. like millions of americans president obama spent much of the day with his tv on keeping track of the dramatic events in watertown and when the manhunt was over he went to the white house room to speak to the nation. major garrett is there now and joins us. good morning. >> reporter: good morning, anthony and margaret. there are rare moments in a president's life when the flow of information to the commander in chief is not all that much different than the flow of information to the rest of us. when the president's best source of information isn't his vast array of advisers but live television. that describes president obama's friday evening. he watched the dramatic events on live television unfolding in watertown. he didn't make his way to the oval office until he had some sense that the second bomber had been captured. upon arriving at the oval office

he received a phone call that no one else did from fbi director robert muellerpos positively that the second suspect was alive, in custody, and in hospital. there were questions that he had, questions that he knew the rest of the country had and questions he wanted answered. >> we will determine what happened. we will investigate any associations that these terrorists may have had and will continue do whatever we have to do to keep our people safe. >> the president said he wanted the entire intelligence apparatus of the federal government to continue to monitor anything related to this case to make sure there are no other security threats either in boston washington or other american city and i can tell you, anthony and margaret the security cordon that's been here at the white house still exists so there's still a little bit of sense here at least in

washington outside the white house, that things may not be over. >> major garrett at the white house. thanks. well, it is widely believes that the tsarnaev brothers' ethnic heritage may have play add role in their decision to bomb the marathon. their family comes from the republican of chechnya an area in southern russia largely muslim. and in the past two decades, chechen islamists have been seeking independence. they have committed some of the world woes most dangerous terror attacks. good morning. >> reporter: good morning. it is only by association yet tragically russiaen lyally russians are no strangers to tore by chechnyans. they are of chechen origins. at home the father of the two suspects only found out about the trouble his sons were in when he turned on the tv.

he says they were set up. we never even had weapons in the family, he said. we escaped oppression and now look what's happened. one of my sons is dead. the family fled chechnya during the worst fighting in the bloody war between the russian army and chechen rebels in the 1990s. they first went to the neighboring republic of kear guy stan. unhappen there, they moved to dagestan. the family immigrated to america. although ethnic cheh chans,echnyans were born there. he said they're to blame for such an upbringing not us. i don't bear any responsible for this. but they do bear responsibility for long and bloody history of terrorist attaches.

in 2002 chechen militants took people hostage in a theater until they stormed a building killing all 41 captors but also 129 hostages. two years later chechnyans. half of them children. the question now here and undoubtedly in the united states is what impacted that legacy of violence and oppression had on the two young men and whether there is in outside influence or help in the attacks. margaret and anthony? >> charlie d'agata in moscow. thank you. >> for more on chechnya and terrorism we're joined by juan zarate. good morning. >> good morning. >> we're interested in this connection between chechnya and the russians. what do you make of the chechen connection here now and the u.s.

>> i think it's too soon until we learn more as to whether there was any connectivity. but it's clear in charlie's report, very insightful. the history of chechen terrorism is brutal and vicious. you not only have those attacks described in the report but railway and subway attacks, suicide attacks on planes. and so this is a region that has been roiled by terrorism for a long time. what's most interesting, i think, for american counterterrorism officials is you had in chechnya a source of operatives that has started to mix in the witch's brew of terrorism in pakistan and it's always been a part of the global jihadi era of oppression with a mind to attack russia and even the united states. >> in talking to officials they also point out to a recent trend

when it comes to lone wolf and carrying out terror attacks. is that the seecenario here or a broader tie back to al qaeda or other movement. >> what you have here is actually a hybrid. it's not clear where he went when he went to russia. thoorts were looking very closely to see if there were connections, if he was perhaps directed or trained with motivation and tactics to attack, but i think the possibility here is that they were sensitized to oppression and issues in the region may have radicalized over time and perhaps there was connectivity abroad. i think authorities are worried you have these lone wofrls individuals embedded in western societies who get radicalized, who may get directed or not but certainly attack in place, and that's something al qaeda has been promoting in the last two or three years in its messaging.

>> there's been reports that security officials have picked up a lot of terrorism chatter in the last couple of days. is that typical to be expected in a case like this? >> absolutely. in part terrorist groups out there were searching for as much information as we were as far as what was happening. so a lot of chatter had to do with trying to understand what was happening but the terrorist groups also take advantage of any opportunity to get their message out. so what you saw in a lot of the jihadi blogs, spaces where they were trying to communicate is basically praising the attacks but also repeating the words of osama bin laden that the u.s. would not rest until its own activities and policies were changed throughout the muslim world. and so they certainly will take advantage of any opportunity. and so you can expect that kind of chatter after an attack. >> juan zarate. thanks, juan. >> thanks, anthony. it's about 23 minutes after the hour. let's take a look at the weather

for your werkd. . and coming up the lessons first responders have learned since 9/11 and how those lessons were put to use during this week of terror and disaster. and later, what organizers of you up coming events will do to make runners and spectators safe. you're watching "cbs this morning saturday."

coming up later, the question everyone is asking this week. why? what could have inspired the suspect in monday's marathon attack to do something so horrible. we'll talk with an fbi profiler and our own john miller a former assistant fbi director. >> we'll be right back. this is

so we're back with john miller. how are you holding up? >> no reason to sleep more than two or three hours a night or you're losing time. >> what a waste. this was just an extraordinary week. have we ever seen a major american city on lockdown before? >> i haven't. you know i was in new york after 9/11. you've seen cities struggle with incidents, but i can't recall a city that wasn't having a riot and under curfew at night with the police department telling a major american city with a couple of million people nobody go outside. >> how controversial is that decision because you can look at that and say terrorists are trying to terrify. you put a city in lockdown and you've achieved that. you have people not leaving their homes. >> i think on a short-term basis

tactically for a number of hours, that could be explained. but i also think, you know after they realized he'd left that perimeter, they took a deep breath a second look and said, all right, we're going to lift the lockdown. you can only do that for so long. life has to go on. >> but from the folks you talked to yesterday, the fbi and the police, were they amazed by what was happened? >> they were worried hoochler was their calculus. people were saying why would you lock down the whole city? why would you can sell the bruins game and the ball game. you have two individual now one individual who you believe is arm and dangerous but who also has explosives and has demonstrated the night before he's willing to use them and has attacked a major event, the marathon, with a big crowd. so now you have other events bringing crowds around. you want to tighten that up. >> this conversation will continue this morning. stay with us. you're watching "cbs this morning saturday."

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you're looking at a live picture of the hospital where the suspect is. they tried to comment and said the fbi will provide an update. welcome here to "cbs this morning saturday." i'm margaret brennan. >> and i'm anthony mason. >> well, we've learned a lot in the past 24 hours about the two brothers that police say were behind the marathon bombings, but there is still a lot that we do not know. why would they target innocent people? what caused these two to turn on their adopted country? we're trying to understand that now with former fbi profiler mary ellen oh toole and once

again cbs correspondent former assistant fbi director. good morning to you both. is there a typical profile? >> no, there's no typical profile, even for crimes like this. so you have to really go and dissect all of the behavior in the crime scene, and when you have two people that are involved, it becomes even more complicated, but you really do have to after all is said and done, you have to look at the leader. >> there were two people involved here two brothers it's important to point out, 26 and 19. so you know there's a pretty strong relationship there to begin with, right? >> there is and that becomes important because if you have that sort of a tight relationship and then you have a situation where things really deteriorate, the older brother is killed the younger brother may be the dependent personality and people may say, but he won't be dangerous so he'll give himself up and frequently that's not the case because they'll

say, look you've taken my hero away from me the person that's helped me and guided me through life. they can become even more dangerous than the actual leader. >> john, by all intents and purposes, this younger of the two, he's an american, he grew up here came here as a child. how was he radicalized. >> that's an important question. you want to know was he radicalized on his own either through an individual or online as so many people are today or was he radicalized by his brother. >> mary ellen, there were -- i spoke to a couple of friends and former coaches of these two boys. both of them said and a number of them dealt with both that they were extremely respectful thoughtful kids. the 19-year-old was the captain of his high school wrestling team for two years. the 26-year-old was a boxer who, you know, said was a tremendous fighter, very disciplined. where did this all change do you think? >> well it's important that

people understand it's not any snap behavior going on and it appears that months out, year out before this event happened, people, though began to report that the older brother began to show signs of changing becoming more isolated or more removed from people that may have been consistent with when he started to decide that he was going to act out but the real pathology exists underthe skin when people start to think i'm not happy with my life it's your fault, and this evolution builds and they say i'm going to take it out on people people i don't even know. >> mary ellen, you've probably seen this in your understudies, but for all intents and purposes, a popular kid in college, there were no alarming you know signs coming from people in the older brother's circle, do they live one outward

life facing the rest of the world and do they have the secret life where they're making these other plans? do they show two faces and how do they separate that? >> it may seem like they show two faces but we know there are warning behaviors. and if you know what the warning behaviors are, some of which are subtle, you can look for them. but if you're contemplating carrying out an act of violence on a scale and you're older, you're able to control it and hide it and be secretive and that's what's important. and most of the time we're looking for a monster who would do something like this. this was not a monster. this looked like a regular 26-year-old, very handsome guy, but underneath different story. >> at a certain point identity is a matter of choice. why is it important to look at the ethnic origins. chechnya, a place they never lived or even religious organization. is this a mat twoefr angry young men who could have been inspired

by anything? >> it's important to look at every aspect of these two young men, their upbringing, where they came from how they were raised, their nurture, their nature. here's what i think is also important. when you look at the leader you get a much better sense of what the motivation was, and in this case i think they're going have to look at this person very likely manipulate and conned this 19-year-old brother and basically used him to carry those, to carry the duffel bag and participate in the bombing. now the older brother is dead and the younger brother is left to pay the price. if that's the case that that's that relationship, there's tremendous manipulation that occurred here the older brother and the younger brother. that is often the case we see with two people. >> mary ellen o'toole and john miller. thank you. >> thank you. >> and now here's a look at the weather for your weekend.

up next how our first responders handled terror and disaster this week and how that's changed since the 9/11 attacks. you're watching "cbs this morning saturday."

boston marathon suspect dzhokhar czartsarnaev tsarnaev what we've seen after the boston attacks and the fertilizer attack explosion in west texas makes one thing clear, hard learned lessons from 9/11 and hurricane katrina have made a difference. many in law enforcement and emergency management say we're now much better equipped to react when really bad things happen.

>> reporter: immediately following monday's bombing, first responders reacted with a coordinated response. >> we immediately activated a system of response that they have in place for these types of incidents. >> reporter: a system put in place after 9/11 when communication systems failed and the various local, state, and federal agencies weren't cord fwhating their actions. according to officials in massachusetts, those changes led to this week's quick coordinated action in boston and saved lives. >> thanks to the efforts of emt, police officers, firefighters, volunteers ordinary citizens and, of course, the doctors, nurses and medical staff at boston's world-class hospitals we can say with absolute certainty more lives were saved.

for this we can all give thanks. >> so what have we learned since 9/11 and what still needs improving? a professor at the department school of public health. he's also a staff rightwriter at the boston magazine and wrote an article "why boston hospitals were ready." he's in davie florida. good morning to both of you. let me start with you. why were boston's hospitals so well prepared for this? >> well, there have been drills. there have been procedures of practice and understanding how to set up incident command. but there's more to it than that. the striking thing is as one of the e.r. docs put it people seemed to know the dance move. when the bombs went off, the runners' medical tent for dehydration the doctors

immediately switched to becoming a triage operation, preposition ltd ems vehicles were able to get people to the hospital in less than 20 minutes. you know that sense that people started springing into action came because of ten years of experience with war, people going to haiti and places for the tsunami disaster even the reaction at aurora. >> those are the positive reactions. but where are the vulnerabilities here within the system? >> where -- >> i think -- >> dave can you respond to that? >> dave? >> ka you hear us? >> yeah. i'm sorry. yeah, i can now. yes. the vulnerabilities in the system are simply not being prepared. what we saw on september 11th 2001 in katrina is the a lack of coordination between the two

entities. that watershed event has sent a message all around the country, especially clear in boston. we saw a coordinated event between police fire ems, and hospital systems. those groups had actually trained together worked together exercised together and it also calls it a unified command system where everyone's in place sharing the communication system. you know who's responsible for that. an outstanding response to a very significant event. we're very proud of boston and what they did. >> you're a doctor here. when you look at the kind of explosion that happened it's more similar to an ied attack something you see in baghdad, kabul, you don't see in boston. does this sort of change this training, is that something doctors should go through if you haven't served in battlefield? >> yeah. you know, even in war, a 10% survival is a huge accomplishment and folks here

have saved everybody who arrived alive. that accomplishment was dependent on both training but also the fact that we replaced pre-9/11 naivety. i would add one thing. we had many things going for us here. the bomb occurred outdoors instead of indoors where it inflicts much more concentrated damage. it happened in a big event where there was prepositioned ems and medical people. you had multiple factors in our advantage and of all of the factors, we had them all playing out to help save people. out in west texas, they had none of those advantages, but they're saving people too. i've got to tell you our thoughts are with them as well. >> given how the response has been in both places i'm sure there's still stuff we need to do. what is that? what do we need to work on? >> i think what we need to do is

take these lessons learn. there'll be an after action report. i talked with them yesterday. although they're recognizing that everything went very well they still want to step back take a look and say what didn't we have that we really needed and what could we have done better. we need to make sure we take those, share them with other people around the country. we know we're going have events natural disasters, unfortunately other disasters like this and we need to make sure not only boston but all the other major cities are prepared to deal with it. >> thanks. up next tomorrow is the london marathon. a major security test in light of the events in boston. so how can police keep them safe? you're watching "cbs this morning saturday." ♪

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extra security tomorrow when runners hit the streets for london's annual marathon. now, britain is used to security challenges but as mark phillips shows us monday's tragedy in boston has meant some last-minute adjustments. >> reporter: marathons like the one in london have always been a security nightmare. london drew 37,000 runner last year and more than 600,000 spectators. similar numbers are expected tomorrow. policing is always heavy. it will be heavier now because of what happened in boston if only to try to reassure people. >> i reviewed my operations with my partners which is the british transport police london police transport of london and i have increased my policing operations. >> reporter: london police say they're not changing the threat level but there are limits to what they can do anyway. with a route of more than 26

miles it's impossible to secure a perimeter around the race. marathons in london may not have been targets in the past through there has been plenty of street carnage. there was the incident in 2005 that killed 52 people and injured hundreds. the irish republican army has planted numerous bombs over the years. the boston bombs were planted near the race finish. in london the finish takes place in front of buckingham palace, and this year people will be concerned with more than the runners on the course. for "cbs this morning saturday," i'm mark phillips. >> we'll also see changes at running events in new york this weekend. the question is how to keep the runners and spectators safe. it's very much on the minds of organizers all across the country. joining us now is jean kenak.

good morning. >> good morning. >> this is a major course through a major metropolitan area. you can't possibly secure everything around it. how do you begin? >> that's true. but the reality is even before this happened, this terrible event happened races do plan for worst-case scenarios. and with this event, they do have a security plan. they do have a disaster plan. the response was fantastic for what happened. it's very hard to plan for these random events but events do have these security plans in place, and when you look at an act like this they're really looking for high concentrations of people where along a marathon course people tend to get spread out. so certainly people at the starting line and finish line people are going to need to redouble their efforts when they're looking at their security plans. >> so i mean apart from that what else do you do? as margaret pointed out, you've got 26 miles. there are a lot of vulnerable

points. what can you add to this? >> well the best partner in security at a race is local law enforcement. and all race officials need to be working with their local law enforcement to review their security plans and understand also what law enforcement's role is going to be in securing the race and the course and on many race courses it is law enforcement that is controlling the you and controlling the intersections at streets. so they are a very strong partner. and also race participants spectators volunteers play a huge role in security at events. they are the eyes that see everything. they will have an important role in reports things that are suspicious. and being an active part of that security plan. >> you have upcoming marathons here in the u.s. >> absolutely. >> in the next few weeks. >> we have races every weekend and almost everywhere in the country. >> do you think there will keep

spectators and runners from coming? >> i hope not. they're strong people. runners are mentally tough, physically tough, and after this initial shock has had time to settle i hope people really rise above that fear and continue to participate in the numbers we've seen over the last ten years. it's a strong sport. a positive and uplifting activity to do. i hope more people show up to the starting line and say we aren't going to be afraid. we aren't going to be scared away because of the act of some people that set out to terrorize others. >> president obama says we're going to finish this race. >> absolutely. >> thank you so much. >> thank you. coming up in our next half hour, the impact of social media on the boston bombing case. how much did it help the investigation and how much did it hurt? you're watching "cbs this moning saturday." found the best cafe in the world. nespresso. where there is an espresso to match my every mood. ♪ ♪ where just one touch creates the perfect coffee. where every cappuccino and

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our ongoing investigation in the marathon bombings. stay with us on "cbs this morning saturday." have you run in road races? >> i have. 5k. i can't make it 26 miles. maybe three miles. >> each then would you be scared to run in a race after this? >> you know what i would be nervous about is being in one of these concentrated areas with large crowds right now. not so much a marathon. >> it is one of the things that struck me in either running in them or being a fan on the roadside. i know when i went to see the tour de france which is more than 26 miles. it's usual hily 100-plus miles and you see these huge concentrations of people totally exposed and anybody can get in there who wants to. i don't know how you secure something like that. at the same time for some reason i don't think i'd be afraid.

>> you go into a concert, you go into a public event, there's at least the x ray machine you walk through. that's become standard. how do you do that with an outdoor event like this? >> it's impossible. >> unless you go on lockdown like the inauguration where even to stand on the street you have to be screened. >> right. i don't -- >> i don't see that happening. >> i think you can be more vigilant as jean was pointing out in you know at the start and the finish. >> more cameras, more eyes more looking for the backpack. >> that's the other thing that struck me about, you know, what we past week is how much information is actually out there visually, you know. and if you use that while the event is happening maybe you can prevent some of this. >> how much human intelligence played into this rather than just, you know cameras as well. we're going to talk with some of the social media contributions. >> we are, coming up. >> stay with us. we'll be right back.

welcome to "cbs this morning saturday." i'm anthony mason. >> and i'm margaret brennan. >> coming up this half hour the dramatic end to the second suspect of the bombing of the boston marathon. he's in custody. >> all that tweeting and texting and facebooking help or did it hurt? >> and speaking of impact we'll tack a look a how the boston manhunt and the transportation shutdown affected travel all over the country and how things stand this morning. >> let's get right to our top story, the capture of the younger two of brothers accused in the boston marathon bombings. he was caught in watertown,

massachusetts, just across the charles river from boston. don dahler joinings us. what's the latest? >> reporter: good morning, margaret. it's no surprise the bostonians were out in the street celebrating. when these events unfolded it happened very quickly. around 10:20 thursday night police say the brothers tsarnaev murdered m.i.t. police officer sean collier. they then allegedly carjacked another man before letting him go unharmed. police caught up with the duo shortly thereafter and what ensued was a 5 1/2-mile long very violent rolling gunfight. they went from cambridge to -- watertown, excuse me. they were tloeg explosives out the window according to police. at one point the older brother tamerlan tsarnaev the police say he charged them with one of those pressure cooker bombs.

it malfunctioned and he went down. he later died of his injuries. but the younger brother, dzhokhar dzhokhar, he escaped. he was later discovered in a boat outside of a house behind me. and after police surrounded him, they eventually had their man. >> don, tell me about the capture itself getting him out of that boat to turn himself in. how did that happen? >> reporter: well, it's very interesting. i was talking with the spokesperson for the massachusetts state police last night and he said that the police had eyes on him when he was in the boat with a helicopter with a forward looking infrared camera. they could see him in there, but they didn't know if he had zploesives. so they brought in a bomb disposal robot to actually pull the cover off of the boat. they saw he was in the bow of the boat so they tossed a flash bang grenade into the stern. they didn't want to explode it near him for fear of setting off

the explosives. that stunned him and they were able to go in and get him. >> all right. don dahler in watertown, massachusetts. thank you, very much. naturally this week of violence apprehensions, and lockdown has been a major trial for resident os testify boston area, but with the death of one suspect and the capture of the other, boston now turns its attention to the victims of the boston marathon tragedy. elaine kiaquijano is in boston with that part of the story. elaine, good morning. >> reporter: good morning to you, anthony. well, of course, amid the celebrations, there have also been some very poignant heartfelt expressions of grief and sympathy for the victims and their families. in fact, just behind me on the police barricades there are well wishes expressing their thoughts and prayers to the victims and their families they're, of course remembering here in boston those killed including 8-year-old martin richard. he was from dorchester massachusetts. he was a third grader who l . . .

his family reacted to news of the capture yesterday with a statement saying in part quote, none of this will bring our beloved martin back or reverse the injuries these men inflicted on our family and nearly 200 others. we continue to pray for healing and for comfort on the long road that lies ahead for every victim and their loved ones. tonight our family applauds the entire law enforcement community for a job well done and trusts that our justice system will now do its job. authorities are also remembering of course 29-year-old krystle campbell, from arlington, massachusetts. she worked as a restaurant manager. her friends say she was very hard working. her father said she was a very caring, loving person and was his little girl. third victim was 23-year-old lindsay liu a boston university graduate student. she had come to the race to watch the marathon with her friends. her family in china said it was always her dream to come to america to study.

sean collier was a 26-year-old police officer and had just joined the m.i.t. police force in january of last year. his family released a statement last night. they are of course heart broken. they said their only solace is that sean died bravely doing what he committed his life to serving and protecting others. anthony? >> thank you. >> after monday's horrific marathon bombings federal, state, and local authorities launched a joint investigation that came to a successful conclusion last night in watertown, massachusetts as you just heard. it was an example of cooperation and coordination among law enforcement agencies. senior correspondent john miller former fbi director is here with some insight into that. john, the investigation doesn't stop with this capture. how important is it that dzhokhar makes it out of the hospital alive? >> it's pretty important.

you really need to answer the questions, was it just you and your brother? did you come up with this yourself? were you radicalized by some other individual? did you do this with a contact from overseas? it's important because the older brother made a trip for six months overseas. he goes to russia. but we don't have a full picture of where else he may have traveled or what he did there. it's important to understand is this two individuals? is this a larger group? or is this part of a network? >> we know tamerlan was questioned by the fbi sometime ago at the request of the russians, correct? >> that's our understanding. it was -- the government is saying at the request of a foreign government but my understanding is it was the russians and it was to examine his ties to extremists over there. >> and president obama last night spoke to vladimir putin, thanked him for his help. what can we assume the russians did in this capture? >> the russians would have been tasked once these individuals

were identified to run all kinds of leads for us over there. who are they? what do you have on them? what can that tell us? family background connections to extremists overseas really in a foreign country when you have something moving fast you give them leads and you say, we need answers, and the fsb, which is the russian fbi, likely sent back those answers in near real time as they were getting them. >> we want information from this 19-year-old. do you think he's likely to talk? >> i do. without knowing much about him and how that interrogation is going to go individually the history, whether it was any of these cases, is once they are in custody in a terrorism case generally they have a story to tell. they have a cause to promote. they have ideology they want to get out. they generally talk. >> and beyond what he willingly shares what can be deciphered

from his computers, his own digital footprint? >> you know margaret that is something that started the moment he was identified. that is as art cummings who used to be head of the national security branch of the fbi used to often say to me i want to own this guy's entire world. when i'm done with him i need to know more about him than he knows about himself. i need to know about his friends, his bank accounts his finances, his social network. i need to know who he calls more, who he calls less. i want telephone charts organizational charts. they will pick apart his life and his brother's life until they have a full understanding of their entire world. >> do you think there's another shoe to drop another message to cop, another event? >> it's too early to say in terms of are there other individuals? is it part of a network? who was the radicalizer if it was an individual as opposed to a message online. i think there are indicators that there were other plans. you have a number of pipe bombs found in their residence.

you have the explosive they were carrying with them including a fully completed device which was the same that they used on the marathon. so it is more than suggestive that they weren't finished yet. when you have to ask yourself why was there no claim of responsibility and why was there all this extra hardware and explosives it suggests they had more to do. >> john miller a developing story. thank you. as we all know the people of boston weren't the only ones to suffer great loss this week. the little town of west not far from waco texas remains a scene of destruction three days after an enormous explosion at a fertilizer plant. authorities there said on friday they've recovered 14 bodies a majority of them volunteer firefighters and emergency medical workers. we'll go to west this morning. good morning manuel. >> reporter: good morning, anthony. police are still blocking off access to the neighborhood where the explosion happened. 50 homes buildings were destroyed, more than 200 people

injured. this video was shot just feet from the side of the explosion and shows collapsed storage bins at the fertilizer plant and nearby railroad tracks pushed together by the blast. wednesday's massive explosion could be felt 50 miles away. on friday crews still searched for survivors. volunteer firefighters, who responded to the initial fire at the plant are among the dead. jerry chapman is one of them. we spoke with his girlfriend, gina rodriguez. >> i couldn't wait to go to work to see him. you know he had me like -- he had butterflies in my stomach. >> reporter: she says he was about to fulfill his dream of becoming an emt. in a town with so much damage nothing compares to the emotional toll. >> we've been side by side for a long time. we're always together. now we're incomplete. >> reporter: donation centers have been set up and fundraisers

are planned to help the families of victims like jerry chapman. the cause of the fire which ignited that blast remains under investigation with at least six federal state and local agencies looking into it. anthony and margaret? >> manuel thank you. a powerful earthquake struck szechwan province in southwest china this morning. dozens of people have been reported killed and hundreds more injured. the quake measured a magnitude 6.6 toppling or damaging buildings and burying people under rubble. rescue recovery efforts are being hampered by the rough terrain and by the remoteness of the region. boy scouts of america has come up with a compromise over its rule denying membership to gays. the organization is proposing a rule change that would allow gay kids to become scouts but it would still deny gay adults from becoming troop leaders. the proposal will be voted on next month by the boy scouts national council. the nba playoffs begin today

and they tip off with the boston celtics visiting new york to take on the knicks. even nonsports fans in boston no doubt are going to embrace the game with a return to normalcy. the boston bruins and red sox will have action at home after having their games postponed yesterday. >> all respect to boston but go knicks. it is about 12 after the hour. here's a look at the weather for your weekend. and up next online social media. the internet was loaded with posts and tweets about the boston bombings this week. did they help or harm the investigation? you're watching cbs this morning saturday.

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there is no doubt the internet and social media have played a significant role in the terrible events in boston this week. but has that role been mostly positive, helping police identify the suspects for instance, or negative actually interfering with the investigation? let's talk it over with dan ackerman senior editor. good morning, dan. >> good morning. >> there was a big role here first of all in identifying the suspects wasn't there in terms of distributing the pictures. >> yeah. a lot of people found this was the best way to get information out there and share it. sometimes it's real information. sometimes it's misinformation. we had a couple false starts that painted the social media in a little bit of a negative light. >> we also had investigators and people in the government using twitter very actively. the announcement of the capture came with a tweet. >> yeah.

i think it turned out that was the fastest way to get information out there to a lot of people because a lot of people when you have a developing news story look to twitter because you can get information from a lot of different sources at the same time. we just have kind of a real time feed of tv stations newspapers local reporters, eyewitnesses. >> so what does that information do? is there a risk to that? >> a huge risk. misinformation is spread very quickly. we saw that earlier this week when we had wrong people identified and people on the internet thought they were doing the right thing but then you end up with somebody with their face on the new york post and it's not the right guy and then you know, you're losing time and you're really damaging people who are totally innocent. >> also like there were fake twitter accounts created in the name of one of the suspects. that can be misleading. and so the burden becomes on the reader of this information to sort it out. >> you always have trolls you always have people well intentioned but end up doing more harm than good.

we have to become savvy consumers and try to figure out what is legitimate and what is not. a lot of times maybe it's worth looking at if someone is on the ground, local news sources are great for that. >> it's interesting to look at the real twitter feeds of the bombers here but also the digital footprint as we were talking about with john miller earlier. how you use facebook how you use twitter ends up sometimes being evidence against you. >> you leave an indelible, digital footprint whether you had a facebook account, even if you delete today, or a twitter account or uploaded photos for photo sharing, i think that is going to be a very valuable thing going forward whenever somebody is accused of something there may be background information that even if they try to get rid of it we can still find. >> you essentially have a record online. >> once it's uploaded once it's somewhere even if you try to get rid of it, it is still there somewhere. >> can you hide it? >> you can try but if you are a person of interest they'll go find it again. >> even beyond twitter and facebook, youtube. some of the uploaded videos that

tamerlan, the elder of the two supposedly used to share his world view that becomes evidence here. how are authorities adjusting to this? >> i think they have to when somebody is identified they need to figure out what social networks to use, what aliases they might have used where they uploaded stuff. sometimes you go directly to the service providers themselves and they have some information there. again, even if you've taken your account down and deleted it they usually retain pretty much all of that information for at least a while. >> i think one of the most frightening things about this was the immediacy of the impact of the distribution of the images in this case. the feedback was instantaneous, wasn't it? >> like you're watching several live tv channels at once. we don't have to sit there and see if one tv station got the feed. you're getting stuff from a bunch of different channels and more importantly from citizens who are there uploading photos and video. the first thing a lot of us saw were people actually there on location who were not reporters, not in the media sharing their own photos and videos.

>> i was there last night as well. dan ackerman for cnn, thanks so much. >> thank you. >> well up next the ripple effect for travelers when an entire city shuts down. stay with us. you're watching "cbs this morning saturday." you're watching "cbs this morning saturday." living with moderate to severe rheumatoid arthritis means living with pain. it could also mean living with joint damage. humira, adalimumab, can help treat more than just the pain. for many adults, humira is clinically proven to help

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yesterday's lockdown the boston caused some major headaches to travelers. not only were bus ways shut down. so today city travel is back up and running but what about the regional national situation? is it still over and will these events prompt tightened security? let's turn to our travel editor peter greenberg. good morning. >> good morning. >> when you shut down the east coast corridor of amtrak you caused a stop alk of travel. what was the spillover? >> the restrictions have now

been lifted. they resumed limited service last night. they're back on full service today. just a couple of hours that's the ripple effect that hurts everybody else especially if your flight was coming from boston. so for example, i was trying to get back up here from south carolina, but the flight was coming to south carolina from boston, three-hour delay. but they're back on track. any time you lose service for about a day, it take 24/to 36 hours. planes are out of service. that didn't happen as badly as it did. it was must eachier. >> there are always disruptions to people's travel plans, personal lives when this happens. there are also cancellations fees when this happens. what happens after this? >> everyplace stepped up to the plate. the airlines waived the fees and the penalties. there really wasn't a big problem at all and that's a good thing. >> if you look back at the 9/11 attack, one of the flights took off from boston that morning. that changed airport security. for something like this, is

there a change? >> there's not exactly it. you see the train stations bus stations, other points as well. but law enforcement can't sustain that. what happens after this is it gets back to the public being vigilant and the public being aware of what's going on. you can't approach a situation like this with a traditional krimmology approach. terrorist doesn't work that way. it's far apart. it's not in a sequence at all. at this point law enforcement has to figure out what we're going to do in different locations. for example, fenway park right? big sporting event. well, up until now when you go into fenway park up until now they would look in your bag to see if you had alcohol. it was random wandert wanding at this

point. >> do you think that's going to become regular, peter, or this is sort of a short-term response? >> i think that will become regular. i have no doubt about it. first of all it doesn't take any more personnel to do it. you have to get to the stadium earlier. i think it's going to be a way of life like going to the airport. >> that didn't really affect the roadways, did it?y just assumeing he couldn't get into car? >> when boston was locked down they weren't getting in their car. they weren't moving. great time to be on 95. at this point, everything is fine. >> it's going to be interesting to see if there are will be changes. changes in flyovers. >> they're not going to change fly patterns or show patterns because they do not have the personnel to do it. it's going to be down to the public to be more vigilant. >> stay with us. you're watching "cbs this morning saturday." coming up. one of the friends of one of the suspects.

peter, it's pretty unusual to shut down the northeast core do, isn't it? >> i can't think -- other than 9/11 when they did a complete ground stop and that was -- they put the planes on the ground everywhere, i haven't seen something like that, especially in one city. >> well, there's something unique as well about life here on the east coast. there are so many major cities within just hours of each other versus, you know if you're in the center of the country. you have to fly to get to the next big city. so what's different in terms of the response? >> you're absolutely right. if you take a look at the way we do our flow of traffic in the country. forgetting just a terrorist attack or lockdown how about weather? laguardia has a delay. they smart to shut down. goes east to west. always has, always will.

if you cannot have the delay at laguardia, boston dallas life goes on. once they made that decision to lock that down every airline had to respond almost immediately because they knew they were going to have a problem. >> you had a ripple effect. they closed boston on the railline and then boston all the way down to new york and you shut down the northeast corridor. >> there is. and there's no other option. that's why this is unprecedent. but the good thing is they knew they couldn't do it forever. the economic impact was too great and they lifted it. >> i got on the flight. i didn't see extra security. you get on amtrak there's no screening when you get on the train. >> that's right. we'll talk about that because that's the key. >> all right. peter greenberg. thanks for being with us. stay with us. you're watching "cbs this morning saturday." we'll be back.

h?x? pxwx? a@ú?x?xx x?xx?x? this is a live picture from watertown, massachusetts, on the morning after one of the most intensive manhunts in u.s. history. what a difference a day make. one of the two brothers accused of bombing the their mon on monday is now in custody. the other is dead. welcome back to "cbs this morning saturday." i'm margaret brennan. >> and i'm anthony mason. and we begin this half hour with a final look at the weather for your weekend.

president obama closely monitored the dramatic events unfolding in watertown, massachusetts, yesterday. and after the terror suspect was captured the president had words of praise for investigators and the people of the boston area. chief white house correspondent major garrett joins us with more on that. he's at the white house. major, good morning to you. >> reporter: good morning, margaret and anthony. you know the president and his advisers watched things very closely in washington yesterday, but they had no operational control. they had a lot of operational curiosity, and i can tell you there was kind of an eerie stillness all day at the white house. the president received two full briefings, one in the morning, one in the evening and occasional updates as the facts warranted. his advisers were not available. didn't answer phone calls or e-mails. it was really a hunkered down scenario at the white house and when things began to move rapidly at watertown, the president did as most of us did.

he watched from live television from the residence just behind me and when it looked like it. he got a phone call from the fbi director rohnert muller confirming what the president suspected that, in fact the second bombing suspect had been captured, was alive, and was being taken to the hospital. a short time later the president came to the briefing room and said all in all it's been a tough week. a terrorist attack at the boston marathon, a horrific explosion at a fertilizer plant in a little town called west texas, deaths in both places and injuries, and the president went out of his way to thank first responders in both cities the state and local authorities and those who did the investigation and those dealing still with the devastation of west texas. the president went out of his way also to remind the country there's still people unaccounted for in west texas. he said the federal government will provide whatever resources are necessary to help them cope with that catastrophe. all in all, the president said,

a very tough week, and he said all of the events this week felt nationwide remind the country we are resilient and we can move on. >> major garrett at the white house. thanks. up next, little is known about the boston marathon bombing suspects but next we'll be joined by a friend of the elder brother who was killed in a gun battle by the police. he's here to shed some light on who these men were. you're watching "cbs this morning saturday." ♪ [ acoustic guitar: upbeat ] [ dog ] we found it together. on a walk, walk, walk. love to walk. yeah, we found that wonderful thing. and you smiled. and threw it. and i decided i would never, ever leave it anywhere. because that wonderful bouncy, roll-around thing... had made you play. and that... had made you smile. [ announcer ] beneful. play. it's good for you.

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across this country there's an intense desire to learn more about the two brothers who allegedly set off the bombs at the boston marathon on monday. joining us now is someone who can provide a personal view of one of the suspects. joining us is guy roshan, a friend of the elder brother who was killed in a gun battle with police in the predawn hours on friday. he joins us. good morning to you. >> how are you. >> tell me. you went to high school with tamerlan. >> i did. >> what was he like? >> i did. i met him as a sophomore in high school. he was a year ahead of me. he was a boxer. he was a very friendly guy a funny guy, almost a smirnoff

type personality, a very fun-loving person very friendly person. so it was very shocking to me when i saw his name on the news yesterday that he was the one that was the prime suspect of this. >> have you been talking to any of your high school classmates about tamerlan? has anyone indicated any part of his personality like this? >> well the primary person i talked with was somebody in the class. i have three separate classes with tamerlan and one of my close friends in high school was in the same class with us, and when i saw his name in the news it's a very unique name. immediately i recognized it but i thought, this can't be the same kid. i texted the kid and said is this the same person that was in the class with us and it turned out to be and we said the same

thing. everything that's being said on news, he was a gentle kid, a nice kid it can't be him. but it turned out to be him. you know i'm not sure how well other kids knew him in high school, but we were in class with him every day on daily basis. i talked with him. we shared the same emotions. i said, this is a sweet kid. he couldn't have done the things that -- you know this bombing, it couldn't be him, so -- >> i spoke with a couple of his boxing coaches yesterday who had the same reaction as you did, saying he was a very respectful guy, disciplined guy, and great boxer. but then there was a boxing colleague of his who told one of our reporters that he noticed a change in the last year or two in him. have you -- did you or any of the friends talk about seeing anything like that happen? >> to be honest i can't speak to the last year. i didn't know him. he graduated in 2006 and i

didn't have contact with him after that. he did tell me while in high school that he was undefeated in the united states. he said, you know boxing in russia was so much more difficult than in the united states. he was undefeated in the united states. but i have had no contact with him, zero contact since he graduated so i can't speak to the last year. >> a lot of questions here about his travel about how close he was to his brother, a lot of that we're going to be exploring. thank you very much for sharing your story with us. >> absolutely. thank you for having me. we've been looking with renewed interest this morning at russia's largely muslim republican of chechnya a source of great violence in the past two decades. it's the ancestral homeland of the boston marathon bombing suspects. beth noble spoke by phone with the suspects' father who lives east of chechnya yesterday.

good morning, beth. thanks for being here. >> pleasure. >> what did he say? >> first of all, he was in shock and maybe in denial. the first minute or so of our talk was just a rant a hysterical rant about how could the authorities have thought that his boys could do this and how could they have killed the elder one. eventually i was able to get him to calm down a little bit and give us some information about them. you know he literally said to me that these boys would not hurt a fly, which i'm going to assume is actually not true. and he said that he had been living in russia for more than a year. so, you know he may have been very out of touch with what was going on in the lives of his sons. he said that you know the older one in particular had become more religious over the years and was going to the mosque on fridays, and so you know clearly nobody -- no parent wants to hear that their child is involved in something like this, and he obviously was really out of the loop.

>> now, explain, though how that identity has been transferred. i mean these kids were living in the united states growing up here. how did the chechen experience or their parents' experience influence them several years later? >> checchens like a lot of the people of the north caucasus have a very strong culture. they're very proud and fierce people. undoubtedly the parents told the kids about what being a chechen is all about, even though we don't have any dhags theindication that the boys lived there. it would have had a pretty big effect on them even growing up in america. there's certainly been a lot of violence in america. violence between checchens and russians has been going on for hundreds of years. >> we've been talking about the brutal attacks but the russians

have also pounded chechnya. there's a deep and bloody history between these two. >> right. going back to the 1940s joseph stall in deported the chechen people, about a million of them to central asia. and then going back to the 1990s when the soviet union fell apart, then chechnya wanted out of russia. they said look if we lead you guys de then everyone will try to secede. you need to stay part of russia. the war was bloody indiscriminate bombings of civilians, at least a hundred thousand people killed most of them civilians. so the checchens do have pretty substantial gripes about the russians. >> even if they weren't raised there, that's very much a part of their culture. beth noble, thank you very much for being with us this morning. up next four are with us to

look ahead to boston and a city hoping to return to a normal, a new normal. you're watching "cbs this morning saturday."

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come to an end for everyone in the boston area. we've asked several of our knowledgeable guests to stay around for a roundtable discussion. joining us are cbs news senior correspondent and former fbi assistant director john miller beth noble. travel editor peter greenberg and former fbi profiler mary ellen o'toole. john, just to begin with does this week prove that the emergency response system that we set up after 9/11 really works? >> i think it proves that the relationships that have been built and basically recast since 9/11 really function. i mean the systems -- the systems are in place, but the systems, i think, are dependent

on people. and when you looked at the agencies that came together and performed seamlessly over this very tense week in boston between the fbi, the boston p.d., the atf, homeland security, and there was none of that squabbling you saw a model for how this was supposed to go. a unified command. >> even on a technical level, back on 9/11 they couldn't talk to each other on the same radio frequency and now they can. this really streamlined the situation. >> peter, when you look at what the new target is. i mean this idea of soft targets, basically targeting where people are, what's next on the list? i mean does this open up new possibilities? >> the possibility's not just opened up. they're there already. this goes to the concept that terrorists don't go for the path of most resistant. they go for the least. hotel targets. hotels, right? lots of incoming people

outcoming, public assembly lots of unintended bags in the laundry. name me one hotel in the country where i couldn't tip the valet to watch my bag, whack outside and set it off with a cell phone. it has to go beyond that. there's no reason why you couldn't have a very soft very subtle metal detection systems that you couldn't check into a hotel with a perimeter security system. we receive that happen overseas now, marriott american grand hotels. you know what? you need that perimeter system. here in new york the marriott marquis, you can't drive the cab into the hotel without opening the truvg and taking a look outside. >> mary ellen, let's talk about this. there was a 19-year-old kid. you thought there was a chance this kid could have killed

himself or allowed himself to be killed. why do you think he stayed alive here. >> at the end of this whole tragic event, he's by himself. he's in survival mode and he's now in the mode of he's now being hunted but i think as important, he does not have the older brother, the leader the planner there to tell him what to do. so now he has to make his own decisions. he could have killed himself. he absolutely could have. i think a lot of it goes to the fact that he did not want to die. he was very afraid. he was a 19-year-old kid now thinking like a 19-year-old kid. they make poor decisions, their judgments are flawed. their brains aren't completely formed. i think he was very, very confused. at the end fortunately he survived. the next step is now we think he'll talk to us under the right set of circumstances, so i think for all of us in law enforcement, that's really a good thing, to know from his lips what really happened.

>> beth on an embarrassing note, the ambassador from the czech republic had to put out a statement to america to say the czech republic has nothing do wi chechnya. we're two entirely different countries. it was sort of a lesson in geography. >> i think a lot of americans are learning where chefchnya is. >> it raises the question what happened after 9/11 profiling. do you see sort of an impact for people from this region of the world? >> probably. you know, a lot of americans, you know have not been thinking about chechnya or the north caucasus, but they're going to be thinking about them and ask where people who come from russia come from. you know another thing to remember is the winter oh lichl picks are going to be happening next year in sochi right near this area. >> okay. we've got to run. beth, john pete eric maryer, mary ellen, thanks for being here with us. >> don't go away.

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a reminder. stay with cbs news and kreb kreb for continuing coverage of the investigation into the events of boston. we'll have that throughout the weekend. >> and have a great weekend, everybody, especially folks in boston cambridge, and watertown. you've earned it. we look back at this extraordinary week in our nation's history. we've seen the faces of evil and witnessed the courage of firefighters, police and ordinary americans who have seen others in peril risk their own lives to help. wbz news crew was standing on the finish line when a deafening explosion rocked the square. we froze. the second explosion confirmed our suspicions. >> we've had an attack. oh my god. oh, my god. >> three did not survive. the youngest 8-year-old martin richard who was at the finish line with his family. >> we're working diligently to

bring those who are responsible for this crime to justice. >> a former justice of the peace was charged today with murdered two texas prosecutors one day after his wife was charged with the same krien. williams and his wife could face the death penalty if convicted. a mississippi man is under arrest accused of trying to mail the poison ricin to president obama and senator roger wicker of mississippi. >> the spect,d paulas arrested at his home in mississippi. court papers say he has distrusted the government for years. get out of here. please, get out of here. >> it was just a bright flash and a roar. i thought it was lightning striking the house. >> one witness says the force of the blast was like a tornado. >> authorities are still in search and rescue mode. >> ammonia nitrate can release what's equal to truck loads of

dynamite. >> the night was filled with explosions and gunfights near boston. >> one suspect is dead and the other suspect is lose. >> i say, dzhokhar if you're alive, turn yourself in and ask for forgiveness. the pursuant went into a residential neighborhood not far from here. >> there is still a very, very t >> the suspect is in the area. >> there was a report of a man hiding in a covered boat. >> that subject is in custody. again, he is in custody at this time. >> we're exhausted, folks, but we have a victory here tonight. >> it failed because we will not waver from the cave ter and the compassion and values that define us as a country, nor will we break the bonds. ♪ sweet caroline ♪ >> that holds us together as americans. ♪

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watertown, massachusetts, as a terrifying ordeal comes to an end. coming up... a look at how police found boston bombing suspect number two. cheers in watertown, massachusetts. how police found boston bombing suspect number 2. >> also ahead reaction from the family of the two brothers blamed for violence that kept hundreds of thousands of people indoors. >> here in the bay area, what investigators are saying about the shooting death of two teenager, a brother and sister. good saturday morning. bryan will join us with our warm weather forecast shortly. the loan surviving suspect in the boston marathon bombing is now being held at a hospital; he's in serious condition. the